Author: Will Singleton
Date: 08:08:53 05/08/03
Go up one level in this thread
On May 08, 2003 at 10:01:40, Richard Pijl wrote: >On May 08, 2003 at 09:26:42, stuart taylor wrote: > >> >>It's certainly (to the naked eye) a piece for 2 pawns and more, if not a good >>bit more! It can't be TOO much of a mistake! >>If there were serious looking counter attacking ideas for Black, then it might >>need more investigation. >>S.Taylor > >Baron, like the King, initially selects Nxf7 and drops it after 40 seconds (on a >PIII-500) for Bf4. The reason seems to be that it values Bf4 a little better >than Nxf7, not that Nxf7 is incorrect. > >I forced Nxf7 to check if there was a problem and I saw the score drop >(perspective of white from 122 to 46, and after more than an hour (again, on the >PIII-500) I got a fail high. But no convincing winning scores (yet). > > ply time nodes score pv > > 5( 9)- 0 15129 -109 e8f7 g2g4 f5h7 c4e6 f7e8 h1e1 > 5(11)& 0 18763 -122 e8f7 g2g4 f5h7 c4e6 f7e8 h1e1 > 5(11). 0 20409 -122 e8f7 g2g4 f5h7 c4e6 f7e8 h1e1 > 6(12)& 0 37976 -114 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 > 6(12). 0 48971 -114 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 > 7(15)& 2 130800 -111 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 e7g5 >f4g5 h6g5 f7g7 > 7(15). 2 202327 -111 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 e7g5 >f4g5 h6g5 f7g7 > 8(19)+ 5 388558 -76 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 c7f4 >f7f4 e7g5 f4e3 > 8(19)& 8 553021 -57 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 c7d8 >f5h7 > 8(19). 9 667706 -57 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 c7d8 >f5h7 > 9(23)& 29 1928019 -67 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >f5h7 f8h7 > 9(23). 31 2098188 -67 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >f5h7 f8h7 > 10(26)& 112 7159794 -46 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >f5h7 h8h7 c3e4 > 10(26). 120 7630546 -46 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >f5h7 h8h7 c3e4 > 11(31)& 395 24578175 -60 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 >g7f7 c7d6 f7e6 d6e6 c4e6 > 11(31). 432 27077394 -60 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 >g7f7 c7d6 f7e6 d6e6 c4e6 > 12(33)& 1110 68274645 -59 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 c7d6 >e1e6 d6d4 d2h6 d4g4 > 12(33). 1226 75878266 -59 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 c7d6 >e1e6 d6d4 d2h6 d4g4 > 13(34)- 2061 128125614 -94 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 d7b6 >c4b3 c7h2 d4d5 b6d7 > 13(36)& 4119 251648743 -93 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 g7g5 >d4d5 a7a6 d5c6 b7c6 c3e4 > 13(36). 4119 251648790 -93 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 g7g5 >d4d5 a7a6 d5c6 b7c6 c3e4 > >Richard. Seems that it's a bit more complicated than that. What the programs miss is that after g5, the best move is not d5, but Re6, after which black can more or less resign. Looks like Nxf7 might just be too deep for any program. [D]r2k2nr/ppqnbQ1b/2p4p/6p1/2BP2P1/2N5/PPPB1P1P/2KRR3 w - -
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